Pages in this category should be moved to subcategories where applicable. This category may require frequent maintenance to avoid becoming too large. It should directly contain very few, if any, pages and should mainly contain subcategories.
Wikimedia Commons has media related to Systems.
| Library cataloging and classification | |
|---|---|
| main topic | system |
| Dewey Decimal | 003 |
A system is a set of entities[disambiguation needed], real or abstract, comprising a whole where each component interacts with or is related to at least one other component and they all serve a common objective.